Bogie hearth furnaces with powerful air circulation are used when an optimal temperature uniformity in the low temperature range is required. They are particularly useful for processes like glass tempering or cooling. With the wide range of additional equipment the furnaces can be individually adapted to the individual process.

N 2880/60HAS for glass cooling with frame for opening of individual chamber segments

Adjustable air outlets for optimization of the temperature uniformity

Temperature recording in accordance with EN 14179-1

N 560/26.. - N 10000/45…

These chamber ovens are available for maximum working temperatures of 260 °C or 450 °C. They are suitable for numerous processes such as pre-heating of moulds, ageing or drying. The version suitable for temperatures up to 450 °C is recommended for Heat Soak testing of Toughened Safety Glass (TSG). During a Heat Soak Test in accordance with EN 14179-1 the panes are exposed to a temperature of 290 °C for at least four hours in order to transform nickel sulfide inclusions and hence to prevent the pane from breaking spontaneously later. The documentation of the heat treatment process is strongly recommended. Program entry, visualization and the documentation of the process are achieved by means of the PLC-control in combination with the powerful Nabertherm Control Center (NCC), which registers and archives the temperatures at different measuring points on the pane.

KTR 3100/S for curing of composites in vacuum bags incl. pump and necessary connections in the oven chamber

The chamber dryers of the KTR range can be used for complex drying processes and heat treatment of charges of normal weight and packing density to an application temperature of 260 °C. The high-performance air circulation enables optimum temperature uniformity throughout the usable space. A wide range of accessories allow the furnace to be modified to meet specific process requirements. The chamber dryers can also be used for production of laminated safety glass (LSG). During this process two panes are bonded using a laminating foil and entered into the oven inside a vacuum bag. From outside the furnace a vacuum is generated via hose connection in order to avoid air inclusions between the panes during the heat treatment.

Tmax 260 °C

Electrically heated (via a heating register with integrated chrome steel heating elements) or gas-fired (direct gas heating including injection of the hot air into the intake duct)

With their maximum working temperature of up to 300 °C and forced air circulation, the ovens achieve a perfect temperature uniformity which is much better than in ovens of most competitors. They can be used for various applications such as e.g. drying, sterilizing or warm storing. Ample warehousing of standard models provides for short delivery times.

These chamber furnaces with air circulation are characterized by their extremely high temperature uniformity. Hence, they are especially suitable for processes such as cooling, crystalizing, pre-heating, curing, but also for numerous processes in tool making. Due to the modular concept, the furnaces can be adjusted to the process requirements by adding suitable equipment.

Tmax 450 °C, 650 °C, or 850 °C

Horizontal air circulation

Swing door hinged on the right

Temperature uniformity up to ∆T 8 K according to DIN 17052-1

Heating from bottom, sides and top

Optimum air flow and temperature uniformity through high circulation rates

One shelf and rails for two additional shelves included (N 15/65 HA without removable tray)

Air baffle box of stainless steel inside the furnace chamber for optmum air circulation

Base frame included in the delivery, N 15/65 HA designed as table-top model

Switchgear with solid-state relays

Model

Tmax

Inner dimensions in mm

Volume

Outer dimensions in mm

Connected

Electrical

Weight

°C

w

d

h

in l

W

D

H

load kW

connection*

in kg

N 30/45 HA

450

290

420

260

30

607 + 255

1175

1315

3.6

1-phase

195

N 60/45 HA

450

350

500

350

60

667 + 255

1250

1400

6.6

3-phase

240

N 120/45 HA

450

450

600

450

120

767 + 255

1350

1500

9.6

3-phase

310

N 250/45 HA

450

600

750

600

250

1002 + 255

1636

1860

19.0

3-phase

610

N 500/45 HA

450

750

1000

750

500

1152 + 255

1886

2010

28.0

3-phase

1030

N 15/65 HA¹

650

295

340

170

15

470

845

460

2.7

1-phase

55

N 30/65 HA

650

290

420

260

30

607 + 255

1175

1315

6.0

3-phase²

195

N 60/65 HA

650

350

500

350

60

667 + 255

1250

1400

9.6

3-phase

240

N 120/65 HA

650

450

600

450

120

767 + 255

1350

1500

13.6

3-phase

310

N 250/65 HA

650

600

750

600

250

1002 + 255

1636

1860

21.0

3-phase

610

N 500/65 HA

650

750

1000

750

500

1152 + 255

1886

2010

31.0

3-phase

1030

N 30/85 HA

850

290

420

260

30

607 + 255

1175

1315

6.0

3-phase²

195

N 60/85 HA

850

350

500

350

60

667 + 255

1250

1400

9.6

3-phase

240

N 120/85 HA

850

450

600

450

120

767 + 255

1350

1500

13.6

3-phase

310

N 250/85 HA

850

600

750

600

250

1002 + 255

1636

1860

21.0

3-phase

610

N 500/85 HA

850

750

1000

750

500

1152 + 255

1886

2010

31.0

3-phase

1030

¹Table-top model*Please see page 61 for more information about supply voltage ²Heating only beetween two phases